feeling useless and like a failure

So for awhile now i have been feeling like an utter failure.... Ive been TTC for 2 years now with no luck and its really starting to make me depressed... I have had two miscarriages one in 2015 and 2016... I dont know what do anymore, i really would just love to have a baby of my own 😭😭😭... Some people on here have been TTC for way longer and i dont understand how they do it... I dont understand how i havent been blessed with a child of my own but people who cant stand kids get pregnant like nothing.... I cant talk to my husband bout this stuff because i know it makes him sad and that makes me feel worse i feel like im dying a little more inside every day.... What do i do? Im trying to stay faithful but its hard